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Li Z, Teng W, Xie X, Bao Y, Xu A, Sun Y, Yang B, Tian J, Li B. Enzymatic acylation of cyanidin-3-O-glucoside with aromatic and aliphatic acid methyl ester: Structure-stability relationships of acylated derivatives. Food Res Int 2024; 192:114824. [PMID: 39147516 DOI: 10.1016/j.foodres.2024.114824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 07/18/2024] [Accepted: 07/21/2024] [Indexed: 08/17/2024]
Abstract
Anthocyanins are water-soluble pigments, but they tend to be unstable in aqueous solutions. Modification of their molecular structure offers a viable approach to alter their intrinsic properties and enhance stability. Aromatic and aliphatic acid methyl esters were used as acyl donors in the enzymatic acylation of cyanidin-3-O-glucoside (C3G), and their analysis was conducted using ultraperformance liquid chromatography-mass spectrometry (UPLC-MS). The highest conversion rate achieved was 96.41 % for cyanidin-3-O-(6″-feruloyl) glucoside. Comparative evaluations of stability revealed that aromatic acyl group-conjugated C3G exhibited superior stability enhancement compared with aliphatic acyl group derivatives. The stability of aliphatic C3G decreased with increasing carbon chain length. The molecular geometries of different anthocyanins were optimized, and energy level calculations using density functional theory (DFT) identified their sites with antioxidant activities. Computational calculations aligned with the in vitro antioxidant assay results. This study provided theoretical support for stabilizing anthocyanins and broadened the application of acylated anthocyanins as food colorants and nutrient supplements.
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Affiliation(s)
- Zhiying Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China
| | - Wei Teng
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China
| | - Xu Xie
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China
| | - Yiwen Bao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China
| | - Aihua Xu
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yongxin Sun
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Baoru Yang
- Department of Life Technologies, University of Turku, Turku, Finland
| | - Jinlong Tian
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China.
| | - Bin Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning Province, 110866, China; Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, Shenyang, Liaoning Province, 110866, China.
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Zhang M, Huang Z, Jayavanth P, Luo Z, Zhou H, Huang C, Ou S, Liu F, Zheng J. Esterification of black bean anthocyanins with unsaturated oleic acid, and application characteristics of the product. Food Chem 2024; 448:139079. [PMID: 38520989 DOI: 10.1016/j.foodchem.2024.139079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/06/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Abstract
Esterification of anthocyanins with saturated fatty acids have been widely investigated, while that with unsaturated fatty acids is little understood. In this study, crude extract (purity ∼ 35 %) of cyanidin-3-O-glucoside (C3G) from black bean seed coat was utilized as reaction substrate, and enzymatically acylated with unsaturated fatty acid (oleic acid). Optimization of various reaction parameters finally resulted in the highest acylation rate of 54.3 %. HPLC-MS/MS and NMR analyses elucidated the structure of cyanidin-3-O-glucoside-oleic acid ester (C3G-OA) to be cyanidin-3-O-(6″-octadecene)-glucoside. Introduction of oleic acid into C3G improved the lipophilicity, antioxidant ability, and antibacterial activity. Further, the color and substance stability analyses showed that the susceptibility of C3G and C3G-OA to different thermal, peroxidative, and illuminant treatments were highly pH dependent, which suggested individual application guidelines. Moreover, C3G-OA showed lower toxicity to normal cell (QSG-7701) and better inhibitory effect on the proliferation of HepG2 cells than C3G, which indicated its potential anti-tumor bioactivity.
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Affiliation(s)
- Mianzhang Zhang
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China
| | - Zixin Huang
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China
| | - Pallavi Jayavanth
- International College, Jinan University, 510632 Guangzhou, Guangdong, China
| | - Ziming Luo
- Zhongshan Riwei Food Company, LTD., 528400 Zhongshan, Guangdong, China
| | - Hua Zhou
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China
| | - Caihuan Huang
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China
| | - Shiyi Ou
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China; Guangzhou College of Technology and Business, 510580 Guangzhou, Guangdong, China
| | - Fu Liu
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China.
| | - Jie Zheng
- Department of Food Science and Engineering, Jinan University, 510632 Guangzhou, Guangdong, China; Guangdong-Hong Kong Joint Innovation Platform for the Safety of Bakery Products, Guangzhou 510632, China.
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Suresh S, Vellapandian C. Assessment of oral toxicity and safety profile of cyanidin: acute and subacute studies on anthocyanin. Future Sci OA 2024; 10:FSO982. [PMID: 38827809 PMCID: PMC11140675 DOI: 10.2144/fsoa-2023-0322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/22/2024] [Indexed: 06/05/2024] Open
Abstract
Aim: Purified anthocyanins lack a detailed safety profile, prompting the need for comprehensive oral toxicity research. Materials & methods: Sprague-Dawley rats aged 8 weeks received 300 mg/kg cyanidin orally for 14 days in acute toxicity (OECD 423). In the subacute study (OECD 407), adult SD rats were administered 7.5, 15 and 30 mg/kg/day cyanidin orally for 28 days. Results: Acute toxicity indicated an LD50 exceeding 300 mg/kg/day without adverse effects. Subacute toxicity at 7.5-30 mg/kg/day showed well-tolerated responses in both genders. No significant alterations in organ weights, hematological parameters, liver/kidney functions or adverse histopathological findings were observed. Conclusion: Oral cyanidin administration demonstrated high safety and tolerance in rats, establishing a NOAEL at 30 mg/kg/day, affirming cyanidin's safety for oral use.
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Affiliation(s)
- Swathi Suresh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science & Technology, Kattankulathur, Chengalpattu, Tamil Nadu, 603203, India
| | - Chitra Vellapandian
- Dean, SRM College of Pharmacy, SRM Institute of Science & Technology, Kattankulathur, Chengalpattu,Tamil Nadu, 603203, India
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4
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Wang Y, Julian McClements D, Chen L, Peng X, Xu Z, Meng M, Ji H, Zhi C, Ye L, Zhao J, Jin Z. Progress on molecular modification and functional applications of anthocyanins. Crit Rev Food Sci Nutr 2023:1-19. [PMID: 37485927 DOI: 10.1080/10408398.2023.2238063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Anthocyanins have attracted a lot of attention in the fields of natural pigments, food packaging, and functional foods due to their color, antioxidant, and nutraceutical properties. However, the poor chemical stability and low bioavailability of anthocyanins currently limit their application in the food industry. Various methods can be used to modify the structure of anthocyanins and thus improve their stability and bioavailability characteristics under food processing, storage, and gastrointestinal conditions. This paper aims to review in vitro modification methods for altering the molecular structure of anthocyanins, as well as their resulting improved properties such as color, stability, solubility, and antioxidant properties, and functional applications as pigments, sensors and functional foods. In industrial production, by mixing co-pigments with anthocyanins in food systems, the color and stability of anthocyanins can be improved by using non-covalent co-pigmentation. By acylation of fatty acids and aromatic acids with anthocyanins before incorporation into food systems, the surface activity of anthocyanins can be activated and their antioxidant and bioactivity can be improved. Various other chemical modification methods, such as methylation, glycosylation, and the formation of pyranoanthocyanins, can also be utilized to tailor the molecular properties of anthocyanins expanding their range of applications in the food industry.
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Affiliation(s)
- Yun Wang
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | | | - Long Chen
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
- School of Food Science and Technology, South China Agricultural University, Guangzhou, China
| | - Xinwen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
| | - Zhenlin Xu
- School of Food Science and Technology, South China Agricultural University, Guangzhou, China
| | - Man Meng
- Licheng Detection and Certification Group Co., Ltd, Zhongshan, China
| | - Hangyan Ji
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Chaohui Zhi
- Changzhou Longjun Skypurl Environmental Protection Industrial Development Co., Ltd, Changzhou, China
| | - Lei Ye
- Changzhou Longjun Skypurl Environmental Protection Industrial Development Co., Ltd, Changzhou, China
| | - Jianwei Zhao
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengyu Jin
- School of Food Science and Technology, Jiangnan University, Wuxi, China
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Li L, Zhou P, Wang Y, Pan Y, Chen M, Tian Y, Zhou H, Yang B, Meng H, Zheng J. Antimicrobial activity of cyanidin-3-O-glucoside-lauric acid ester against Staphylococcus aureus and Escherichia coli. Food Chem 2022; 383:132410. [PMID: 35182879 DOI: 10.1016/j.foodchem.2022.132410] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/16/2022] [Accepted: 02/07/2022] [Indexed: 11/18/2022]
Abstract
Enzymatic acylation of anthocyanin with fatty acid improves its lipophilic solubility and application potential. Nevertheless, evaluation of functional properties of product is premise for application. This study investigated the antimicrobial potential and the underlying mechanisms of an acylated anthocyanin, namely, cyanidin-3-O-glucoside-lauric acid ester (C3G-LA), to provide guidelines for its application. C3G-LA exhibited outstanding antibacterial activity against Staphylococcus aureus [minimum inhibitory concentration (MIC) = 0.3125 mg/mL] and modest activity against Escherichia coli (MIC = 5 mg/mL). Moreover, C3G-LA manifested bactericide ability against S. aureus at 0.625 mg/mL. Decreases in membrane integrity (by 96% and 92% at MIC in S. aureus and E. coli, respectively), intracellular ATP concentration (by 96% and 92%) and intracellular pH (by 11% and 9%) and changes in cellular morphology altogether indicated the dysfunction of cell membrane under C3G-LA treatment. These findings demonstrated that C3G-LA could be adopted as an alternative food preservative against foodborne pathogens.
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Affiliation(s)
- Lili Li
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ping Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; InnoStar Bio-Tech Nantong Site, Nantong 226133, Jiangsu, China
| | - Yidi Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Ying Pan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Min Chen
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ye Tian
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hua Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Baoru Yang
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jie Zheng
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; Zhongshan Hongli Health Food Industry Research Institute Co., Ltd, Zhongshan 528400, Guangdong, China.
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6
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Leonarski E, Cesca K, de Oliveira D, Zielinski AAF. A review on enzymatic acylation as a promising opportunity to stabilizing anthocyanins. Crit Rev Food Sci Nutr 2022; 63:6777-6796. [PMID: 35191785 DOI: 10.1080/10408398.2022.2041541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Anthocyanins are naturally occurring bioactive compounds found mainly in fruits, vegetables, and grains. They are usually extracted due to their biological properties and great potential for technological applications. These compounds have characteristic pH-dependent colorations that are natural dyes since they come in different colors. However, they are susceptible to processing conditions, remarkably light, temperature, and oxygen. The acylated anthocyanins showed better stability characteristics, and therefore, an acylation process of these compounds could improve their applications. The enzymatic acylation was effective and showed promising results. The current review provides an overview of the works that performed enzymatic acylation of anthocyanins and studies on the stability, antioxidant activity, and lipophilicity. In general, enzymatically acylated anthocyanins showed better stability to light and temperature than non-acylated compounds. In addition, they were liposoluble, a characteristic that allows their addition to products with lipid matrices. The results showed that these compounds formed by enzymatic acylation have perspectives of application mainly as natural colorants in food products. Therefore, the enzymatic acylation of anthocyanins appears viable to increase the industrial applicability of anthocyanins. There are still some gaps to be filled in process optimization, the reuse of enzymes, and toxicity analysis of the acylated compounds formed.
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Affiliation(s)
- Eduardo Leonarski
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Karina Cesca
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Débora de Oliveira
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Acácio A F Zielinski
- Department of Chemical Engineering and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
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7
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Marathe SJ, Dedhia N, Singhal RS. Esterification of sugars and polyphenols with fatty acids: techniques, bioactivities, and applications. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2021.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Zeng F, Zeng H, Ye Y, Zheng S, Zhuang Y, Liu J, Fei P. Preparation of acylated blueberry anthocyanins through an enzymatic method in an aqueous/organic phase: effects on their colour stability and pH-response characteristics. Food Funct 2021; 12:6821-6829. [PMID: 34115078 DOI: 10.1039/d1fo00400j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the potential of anthocyanins in pH-colour responsive intelligent packaging and improve the stability of the pigments, 3,4,5-trimethoxybenzoic acid and gallic acid were grafted onto blueberry anthocyanins via enzyme-catalysed grafting. The structural analysis based on UV-vis and IR spectroscopy showed that the two acids were successfully grafted onto the blueberry anthocyanins. The acylation degrees of the 3,4,5-trimethoxybenzoic acid-acylated anthocyanin (Tr-An) and gallic acid-acylated anthocyanin (Ga-An) were 6.38% and 6.51%, respectively. The results from the DPPH radical scavenging assay and ferric reducing antioxidant power assay implied that the antioxidant capacity of Tr-An was worse than that of natural anthocyanin (Na-An), but the antioxidant capacity of Ga-An was stronger than that of Na-An. The grafting of the two acids enhanced the stability of the blueberry anthocyanins and had little effect on the pH-colour response characteristics of the blueberry pigments.
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Affiliation(s)
- Fansen Zeng
- School of Biological Science and Biotechnology, Fujian University Key Laboratory of Characteristics Garden Plants Resource in Fujian and Taiwan, Minnan Normal University, Zhangzhou, 363000, P.R. China.
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